CN101094611B - Ultrasonographic device - Google Patents
Ultrasonographic device Download PDFInfo
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- CN101094611B CN101094611B CN2005800458659A CN200580045865A CN101094611B CN 101094611 B CN101094611 B CN 101094611B CN 2005800458659 A CN2005800458659 A CN 2005800458659A CN 200580045865 A CN200580045865 A CN 200580045865A CN 101094611 B CN101094611 B CN 101094611B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/13—Tomography
- A61B8/14—Echo-tomography
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/02007—Evaluating blood vessel condition, e.g. elasticity, compliance
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
- A61B8/0858—Detecting organic movements or changes, e.g. tumours, cysts, swellings involving measuring tissue layers, e.g. skin, interfaces
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
- A61B8/461—Displaying means of special interest
- A61B8/463—Displaying means of special interest characterised by displaying multiple images or images and diagnostic data on one display
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
- A61B8/467—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient characterised by special input means
- A61B8/469—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient characterised by special input means for selection of a region of interest
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/48—Diagnostic techniques
- A61B8/485—Diagnostic techniques involving measuring strain or elastic properties
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/48—Diagnostic techniques
- A61B8/488—Diagnostic techniques involving Doppler signals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8977—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using special techniques for image reconstruction, e.g. FFT, geometrical transformations, spatial deconvolution, time deconvolution
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52023—Details of receivers
- G01S7/52036—Details of receivers using analysis of echo signal for target characterisation
- G01S7/52042—Details of receivers using analysis of echo signal for target characterisation determining elastic properties of the propagation medium or of the reflective target
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52053—Display arrangements
- G01S7/52057—Cathode ray tube displays
- G01S7/5206—Two-dimensional coordinated display of distance and direction; B-scan display
- G01S7/52063—Sector scan display
Abstract
An ultrasonographic device includes: a probe (102) for transmitting/receiving an ultrasonic wave to/from an examinee; transmission means (120) for supplying a drive signal for wave transmission to the probe (102); reception means (122) for processing a reception signal outputted from the probe (102); a displacement calculation unit (105) for measuring displacement of a biological tissue according to the output signal from an ultrasonic wave transmission/reception unit (103); a color DSC (108) constituting an elastic image based on the displacement of the biological tissue; and an image display device (112) for displaying the elastic image. The ultrasonographic device further includes displacement search direction setting means (113B) for setting the search direction of the displacement in accordance with the direction of displacement of the biological tissue. The color DSC (108) constitutes the elastic image according to the measurement value of displacement of the search direction.
Description
Technical field
The present invention relates to ultrasonographic technology that the elastic image of character such as the deformation of bio-tissue of performance subject or hardness is taken.
Background technology
The diagnostic ultrasound equipment that ultrasound wave is looked like to take, thereby penetrate ultrasound wave to subject by supply with the driving signal that send ripple to use to ultrasound probe, and by the reflective echo of ultrasound probe acceptance, based on coming the reconstruct ultrasonography to show from the received signal of ultrasound probe output from the subject reflection.
As such diagnostic ultrasound equipment, the known deformation of bio-tissue or the device taken of the elastic image of character such as hardness to the performance subject.For example, diagnostic ultrasound equipment is obtained the time-series image relevant with bio-tissue when subject is exerted pressure, obtain being correlated with of obtained time-series image and measure the displacement of bio-tissue, try to achieve elastic data (for example deformation, elastic modelling quantity) based on measured displacement and constitute elastic image.
When measuring the displacement of bio-tissue, as the method for exerting pressure to subject, for example known following method: utilize the body of periodically tissue being oppressed to move the method for (body motion) (for example pulsation of blood vessel) as pressure source; Manually with ultrasound probe by the method for on subject, oppressing; The method (for example patent documentation JP2000-60853) of compressing such as vibrator subject.
The direction of bio-tissue actual displacement when, the mode in the past that comprises patent documentation does not take into full account and gives pressure to subject (below be called the displacement of tissue direction) and measure relation between the elasticity computing direction (below be called the displacement probing direction) of the displacement of bio-tissue.That is, displacement probing direction in the past for example is set in the direction perpendicular to the ultrasonic transmission/reception face regularly, and the displacement of tissue direction is according to fluidly changing at the shape of the compressing direction of bio-tissue or pressure surface.Therefore, when measuring the displacement of bio-tissue, between displacement probing direction and displacement of tissue direction, there is deviation.At this moment, in measured value, might comprise the error that causes because of described deviation.If constitute elastic image based on such measured value, then exist this elastic image can not verily reproduce the situation of the character of bio-tissue.
Summary of the invention
The objective of the invention is to realize to be applicable to diagnostic ultrasound equipment, ultrasonographic program and ultrasonographic method that the elastic image that the certainty of measurement that improves the bio-tissue displacement more verily reproduced the character of bio-tissue is taken.
To achieve these goals, diagnostic ultrasound equipment of the present invention comprises: receive and dispatch ultrasound wave between the ultrasound probe, itself and subject; Transmitting element, it supplies with the driving signal that send ripple to use to this ultrasound probe; Receiving element, it is to handling from the received signal of described ultrasound probe output; The elasticity picture constitutes the unit, and it constitutes elastic image based on the displacement of the bio-tissue of being measured by the output signal of this receiving element; And display unit, it shows described elastic image, this diagnostic ultrasound equipment also has: and the detecting unit of displacement of tissue direction, it detects the direction that described bio-tissue is subjected to displacement; With displacement probing direction setup unit, when it sets the probing direction of displacement of described bio-tissue on the ultrasonic beam direction of described ultrasound probe, export the instruction that makes described ultrasonic beam and the deflection as one man of detected described displacement of tissue direction to described transmitting element or described receiving element, described elasticity picture constitutes the displacement that the ultrasonic beam direction of described bio-tissue after deflection measured in the unit, constitutes described elastic image.
According to the preferred embodiment of the present invention,, also can make the displacement probing direction consistent with the displacement of tissue direction even under the situation that the displacement probing direction staggers with respect to the displacement of tissue direction.And, if the displacement of measuring bio-tissue along the displacement probing direction,, thereby improved the precision of measured value then along the orientation measurement displacement of bio-tissue actual displacement.By constituting elastic image, thereby reduce the anthropic factor that produces in the elastic image based on such measured value.The high-quality elastic image of the character of bio-tissue is verily reproduced in its result's acquisition.
In addition, ultrasonographic program of the present invention, it makes control computer carry out following steps: the displacement of tissue direction that is subjected to displacement with the bio-tissue of subject is as one man set the setting step of the probing direction of described displacement; To and described subject between the hyperacoustic ultrasound probe of transmitting-receiving supply with the step of sending the driving signal that ripple uses; To the step of handling from the received signal of described ultrasound probe output; The step that signal after being handled by described reception is measured the displacement on the described probing direction; Constitute the step of elastic image based on the measured value of described displacement; With the step that shows described elastic image.
In addition, ultrasonographic method of the present invention comprises: the displacement of tissue direction that is subjected to displacement with the bio-tissue of subject is as one man set the setting step of the probing direction of described displacement; To and described subject between the hyperacoustic ultrasound probe of transmitting-receiving supply with the step of sending the driving signal that ripple uses; To the step of handling from the received signal of described ultrasound probe output; The step that signal after being handled by described reception is measured the displacement on the described probing direction; Constitute the step of elastic image based on the measured value of described displacement; With the step that shows described elastic image.
Description of drawings
Fig. 1 is the block diagram of formation that the diagnostic ultrasound equipment of one embodiment of the present invention has been used in expression.
Fig. 2 is the figure of formation of the control operational part of presentation graphs 1.
Fig. 3 is the figure of the asynchronous elasticity picture shooting of expression displacement probing direction and displacement of tissue direction form.
Fig. 4 is the make a video recording figure of form of the elasticity picture of expression displacement probing direction when consistent with the displacement of tissue direction.
Fig. 5 is the figure that expression is carried out the processing of computing to the displacement of probing direction.
Fig. 6 is the figure of expression at the setting example in the care zone of various blood vessels.
Fig. 7 is the figure of expression processing that the displacement of tissue direction is detected automatically.
Fig. 8 is that expression makes the figure that is set in the elasticity picture shooting form of being concerned about when regional displacement probing direction is consistent with the displacement of tissue direction.
Fig. 9 is the figure of expression other processing that the displacement of tissue direction is detected automatically.
Figure 10 is the figure of the demonstration example of the expression guidance information that shows the incline direction of ultrasound probe and angle of inclination.
Figure 11 is the figure that expression has shown the form of guidance information, and wherein guidance information is illustrated in the angle information of being concerned about area arrangement.
The specific embodiment
With reference to accompanying drawing, the embodiment of having used diagnostic ultrasound equipment of the present invention and ultrasonographic method is described.Fig. 1 is the block diagram of the diagnostic ultrasound equipment of present embodiment.Fig. 2 is the figure of formation of the control operational part of presentation graphs 1.
As depicted in figs. 1 and 2, diagnostic ultrasound equipment comprises: and subject 101 between the hyperacoustic ultrasound probe of transmitting-receiving (below be called probe 102); Supply with the driving signal that send ripple to use to probe 102, and handle from the ultrasonic transmission/reception portion 103 of the received signal of 102 outputs of popping one's head in; Constitute the elastic image formation unit of elastic image based on the displacement of the bio-tissue of measuring according to the output signal of ultrasonic transmission/reception portion 103; With as the image display 112 of the display unit that shows elastic image etc.Here said elastic image constitutes the unit and comprises: displacement operational part 105; Deformation operational part 106; Elastic modelling quantity operational part 107; Colorful digital scan converter 108 (below be called colored DSC108) etc.In addition, be provided with control operational part 113, it constitutes output control instructions such as unit to ultrasonic transmission/reception portion 103 or elastic image.
Then, as shown in Figure 2, the control operational part 113 that is applied to the diagnostic ultrasound equipment of present embodiment is equipped with the setup unit 113B of displacement probing direction.When taking elastic image, the elasticity computing direction (below be called the displacement probing direction) of displacement that the setup unit 113B of displacement probing direction will measure the bio-tissue of subject 101 is set consistently with the direction of bio-tissue actual displacement (below be called the displacement of tissue direction).Then, the setup unit 113B of displacement probing direction makes elastic image constitute the displacement that the bio-tissue on the displacement probing direction after setting is measured in the unit.
Thus, even under the situation of displacement probing direction, also can make the displacement probing direction consistent with the displacement of tissue direction with respect to the dislocation of displacement of tissue direction.Therefore, owing to orientation measurement displacement, so improved the precision of measured value along the bio-tissue actual displacement.By constituting elastic image, thereby can in elastic image, verily reproduce the character of bio-tissue based on such measured value.
Diagnostic ultrasound equipment to present embodiment describes in more detail.Diagnostic ultrasound equipment roughly is divided into ultrasonic transmission/reception system, layer image camera system, elastic image camera system, display system, control system.
The ultrasonic transmission/reception system possesses probe 102 and ultrasonic transmission/reception portion 103.Probe 102 has the ultrasonic transmission/reception face, by carrying out beam scanning with machinery or electronics mode and subject 101 between receive and dispatch ultrasound wave.Ultrasonic transmission/reception face alignment arrangements has a plurality of vibrators.Mutual transforms electrical signals of each vibrator and ultrasound wave.In addition, probe 102 disposes pressure transducer at the ultrasonic transmission/reception face.Pressure transducer detects and is applied to the pressure on the ultrasonic transmission/reception face and outputs to pressure measxurement portion.Pressure measxurement portion outputs to deformation operational part 106 or elastic modelling quantity operational part 107 with pressure data.
As shown in Figure 2, ultrasonic transmission/reception portion 103 comprises: transmitting element 120, and it supplies with the driving signal (pulse) that send ripple to use through Transmit-Receive Unit 121 to probe 102; With receiving element 122, it receives through the received signal of Transmit-Receive Unit 121 from 102 outputs of popping one's head in.
The transmitting element 120 of ultrasonic transmission/reception portion 103 has: the vibrator that will drive probe 102 produces hyperacoustic driving signal and promptly send wave impulse to set circuit and the circuit to sending the degree of depth of the convergent point of ripple beam to set from 102 ultrasound wave that penetrate of popping one's head in that sends at interval.Here, the transmitting element 120 of present embodiment is according to the vibrator group of selecting to supply with through Transmit-Receive Unit 121 pulse, and along the mode of displacement of tissue scanning direction from 102 ultrasonic beams that send of popping one's head in, control produces the timing of sending wave impulse.That is, transmitting element 102 is controlled the scanning direction of ultrasonic beam by the time delay of controlling this pulse signal.
The receiving element 122 of ultrasonic transmission/reception portion 103 has: to through Transmit-Receive Unit 121 from the signals of 102 outputs of popping one's head in amplify with the gain of regulation and to generate the RF signal be the circuit of reception of echoes signal with the phase place of RF signal is carried out phase modulation mutually adduction generate the circuit of RF signal data with time series.122 pairs of reception of echoes signals that obtain from popping one's head in 102 ultrasonic beams that send through Transmit-Receive Unit 121 of such receiving element are given the time delay of regulation, carry out the phase modulation addition after making the phase place unanimity.
The layer image camera system possesses layer image formation portion 104.Layer image formation portion 104 has signal processing part and black and white scan converter.Signal processing part is by to implementing Flame Image Process from the RF signal of ultrasonic transmission/reception portion 103 output, thereby constitutes the deep or light layer image data (for example, black and white layer image data) relevant with subject 101.Here said Flame Image Process is gain revisal, logarithmic compression (logcompression), detection, enhancing profile, Filtering Processing etc.The black and white scan converter is that the layer image data relevant with subject 101 that are stored in the frame memory are read by unit with the frame, and synchronously exports the layer image data of reading with TV.The black and white scan converter here comprises: will be the A/D converter of digital signal from the layer image data conversion of signal processing part output; Store the frame memory of a plurality of layer image data that are digitized with time series; The controller of the instruction of layer image data is read in output from frame memory.
The elastic image camera system possesses: the displacement operational part 105 that is provided with from the outlet side branch of ultrasonic transmission/reception portion 103; Deformation operational part 106; Elastic modelling quantity operational part 107; With colored DSC108.
Displacement operational part 105 is based on the bio-tissue of measuring subject 101 from the RF signal data of ultrasonic transmission/reception portion 103 outputs.This displacement operational part 105 has RF signal selecting part, calculating part and filtering portion.
The RF signal selecting part of displacement operational part 105 has frame memory and selection portion.This RF signal selecting part will be stored in frame memory from the seasonal effect in time series RF signal data of ultrasonic transmission/reception portion 103 outputs, and the RF signal frame data group after storage is selected 1 group of i.e. 2 RF signal frame data by selection portion.More specifically, the RF signal selecting part is guaranteed in frame memory from the seasonal effect in time series RF signal data of ultrasonic transmission/reception portion 103 outputs in turn according to image frame rate.Then, the RF signal selecting part is according to the instruction from the output of control operational part 113, selects the RF signal frame data (N) as first data in the middle of the RF signal data group who is stored in frame memory.Then, the RF signal selecting part is according to the instruction from the output of control operational part 113, selects the RF signal frame data (X) as second data in the middle of the RF signal data group who is stored in frame memory.The RF signal frame data (X) are here compared with RF signal frame data (N), are to be stored in earlier the RF signal frame data group (N-1, N-2, N-3......N-M) of frame memory to choose from the time.In addition, N, M, X be as with the natural number of RF signal frame data associated index number.
The calculating part of displacement operational part 105 is tried to achieve the displacement on the displacement probing direction of bio-tissue according to 1 group of RF signal frame data.More specifically, this calculating part is carried out the relevant treatment of one dimension or two dimension between RF signal frame data (N) of selecting by the RF signal selecting part and the 2nd RF signal frame data (X).For example, calculating part is by adopting Block Matching Algorithm as relevant treatment, thereby tries to achieve displacement on the displacement probing direction of the bio-tissue corresponding with each pixel of layer image or motion-vector (below be referred to as displacement).The motion-vector here is that one dimension or the two-dimension displacement relevant with size with the direction of displacement distributes.Block Matching Algorithm is meant, for example divides for the piece that is made of N * N pixel with pixel, is conceived to be concerned about the piece in the zone, and the close piece of piece after frame is in the past sought and paid close attention to from the time is that difference decides the specimen value with reference to this piece by predictive coding.
In addition, the filtering portion of displacement operational part 105 has the filter circuit that makes from the deviation equalization of the displacement of the bio-tissue of displacement calculating part output, and implements to be used for the pretreatment of the signal processing of smooth execution back segment.
106 pairs of deformation operational parts from the amount of movement of the bio-tissue of displacement operational part 105 outputs for example displacement △ L carry out space differentiation and obtain the deformation data (S=△ L/ △ X) of bio-tissue.In addition, elastic modelling quantity operational part 107 removes pressure by the variation with displacement to be changed, thereby obtains the elastic modelling quantity data of bio-tissue.For example, elastic modelling quantity operational part 107 is tried to achieve the pressure △ P of the ultrasonic transmission/reception face that puts on probe 102 by pressure measxurement portion.Then, elastic modelling quantity operational part 107 is based on pressure △ P and displacement/△ L, and (Ym=(△ P)/(△ L/L) is as the elastic modelling quantity data for example to try to achieve Young's modulus Ym.Like this, elastic modelling quantity operational part 107 is tried to achieve the elastic modelling quantity data respectively by the each point corresponding to layer image, thereby obtains the elastic image data of two dimension.In addition, Young's modulus is meant, the simple tensile stress that puts on object with the ratio of the deformation of the parallel generation that stretches.In addition, comprising that deformation data and elastic modelling quantity data suitably are referred to as elastic data, will be that the elastic data of unit suitably is called the elasticity frame data with the frame.
Colored DSC108 constitutes the color elastic image relevant with the bio-tissue of subject 101 based on the elastic data from deformation operational part 106 or 107 outputs of elastic modelling quantity operational part.For example, colored DSC108 has elastic data handling part, chromoscan transducer and frame memory.The elastic data handling part will be stored in frame memory from the elasticity frame data of deformation operational part 106 or 107 outputs of elastic modelling quantity operational part.The elastic data handling part is implemented Flame Image Process according to the instruction from 113 outputs of control operational part to the elasticity frame data of reading from frame memory.
The chromoscan transducer of colored DSC108 is based on chromaticity diagram to carrying out the tone reversal portion that tone reversal is handled from the elasticity frame data of elastic data handling part output.The chromaticity diagram here is the figure that the color and luster information that determined by the three primary colors of light promptly red (R), green (G), blue (B) is associated with the size of elastic data.In addition, red (R), green (G), blue (B) have 256 gray scales respectively, along with near 255 gray scale, show as high brightness, along with near 0 gray scale, show as low-light level.
For example, the chromoscan transducer of colored DSC108 hour is being transformed to code red from the deformation data of elastic data handling part output, and is transformed to blue code and is stored in frame memory when the deformation data are big.Then, the chromoscan transducer is synchronously read the elasticity frame data and is shown in image display 112 from frame memory and TV according to control instruction.Elastic image based on the elasticity frame data after the tone reversal here is to describe the hard position of bio-tissue (for example tumor) with red colour system, describes position on every side, hard position with blueness system.By the such elastic image of visuognosis, thereby can visually for example grasp the width or the size of tumor.In addition, colored DSC108 connects operating portions 114 such as keyboard through control operational part 113.According to the instruction through operating portion 114 inputs, colored DSC108 can change the color of chromaticity diagram etc.
Display system comprises figure portion (graphic section) 109, colour code generating unit 110, the synthetic portion 111 of image and image display 112 etc.Figure portion 109 generates the image (for example, the framework of picture or graphic user interface) beyond layer image or the elastic image.The colour code that the variation that colour code generating unit 110 generates color and luster showed along with the stage.The colour code here can be corresponding to the chromaticity diagram of colored DSC108.
The synthetic portion 111 of image will be from the layer image of layer image formation portion 104 outputs, from the elastic image of colored DSC108 output, from the image of figure portion 109 outputs, synthetic and generate a ultrasound wave picture from the colour code of colour code generating unit 110 outputs.For example, the synthetic portion 111 of image has frame memory, image processing part and image selection portion.The frame memory storage here is from the layer image of layer image formation portion 104 output, from the elastic image of colored DSC108 output, from the frame diagram picture of figure portion 109 outputs, from the colour code of colour code generating unit 110 outputs.Image processing part is read layer image or elastic image according to control instruction from frame memory, to pixel corresponding mutually under the same coordinate system of layer image or elastic image, with monochrome information, the color and luster information of synthetic this each pixel of preset proportion phase adduction.That is, image processing part makes elastic image relatively be overlapped on the layer image in the same coordinate system.The image selection portion is according to being chosen in the image that image display 112 shows in the group of pictures of control instruction from be stored in frame memory.Image display 112 has monitor that the view data from 111 outputs of the synthetic portion of image is shown etc.
As shown in Figure 2, control system possesses control operational part 113 and operating portion 114 etc.Control operational part 113 comprises: the setup unit 113B of basic control unit 113A, displacement probing direction, the detecting unit 113C of displacement of tissue direction, the setup unit 113D that is concerned about the zone, the angle modification unit 113E that is concerned about the zone and the generation unit 113F of guidance information.
Basic control unit 113A exports various control instructions to ultrasonic transmission/reception system, layer image camera system, elastic image camera system, display system.When the setup unit 113B of displacement probing direction staggers with respect to the displacement of tissue direction at the displacement probing direction, reset and make the displacement probing direction consistent with the displacement of tissue direction.The displacement probing direction here is meant, should become the elastic data computing direction of benchmark when the displacement of the bio-tissue of measuring subject 101.The detecting unit 113C of displacement of tissue direction detects the displacement of tissue direction of bio-tissue actual displacement when the bio-tissue of subject 101 is exerted pressure.The setup unit 113D that is concerned about the zone sets care zone (ROI:Region Of Interest) according to the instruction through operating portion 114 inputs at the layer image that is shown in image display 112.The angle modification unit 113E that is concerned about the zone rotates by making the care zone of being set by setup unit 113D, thereby revises the set angle of being concerned about the zone.The guidance informations of the inclination of the probe 102 when the generation unit 113F generation expression displacement probing direction of guidance information is consistent with the displacement of tissue direction etc. also are shown in image display 112.In addition, operating portion 114 has as the keyboard of the interface of various setting usefulness or indicator etc.
Below, be described in detail with reference to the control operational part 113 of accompanying drawing present embodiment.
(embodiment 1)
Present embodiment is semi-automatic specified tissue direction of displacement, and makes the example of ultrasonic beam deflection on the consistent displacement probing direction of setting with this displacement of tissue direction.Fig. 3 is the sketch map that produces the form of deviation between expression displacement probing direction and the displacement of tissue direction.Fig. 4 is the sketch map that expression makes the displacement probing direction form consistent with the displacement of tissue direction.
As shown in Figure 3, the ultrasonic transmission/reception face 201a of probe 102 contacts with for example body surface of subject 101.The displacement probing direction 206a～206h here be initially set in by the ultrasonic beam directions of probe 102 transmitting-receivings, promptly with the direction of ultrasonic transmission/reception face 201a approximate vertical.In addition, the blood vessel of establishing in the subject 101 (blood vessel) 204 exists with the linearity that tilts with respect to ultrasonic transmission/reception face 201a.And shown in the figure dotted line, it is rectangle with respect to the rectangle of ultrasonic transmission/reception face 201a almost parallel that the care zone 203 that should obtain the bio-tissue of elastic image is configured to long leg.In addition, the care zone 203 here is set on the layer image that image display 112 shows according to the instruction through operating portion 114 inputs.
In form shown in Figure 3, by the periodically pulsing of blood vessel 204, the tissue of compressing blood vessel 204 peripheries.The displacement of being concerned about the bio-tissue in the zone 203 in its perienchyma is by 205 measurements of displacement operational part.Based on the measured value of displacement, calculate elastic data by deformation operational part 106 or elastic modelling quantity operational part 107.Based on the value of calculation of elastic data, constitute elastic image then by colored DSC108.
But, in example shown in Figure 3, when measuring the displacement of being concerned about the bio-tissue in the zone 203, displacement probing direction 206a～206h is that the ultrasonic beam direction promptly is concerned about zone 203 short side direction, and based on the displacement of tissue direction 205a～205j of blood vessel 204 pulsation be blood vessel 204 radially.Thus, displacement probing direction 206a～206h and displacement of tissue direction 205a～205j intersect with predetermined angular.That is, between displacement probing direction 206a～206h and displacement of tissue direction 205a～205j, produce deviation.If under such state, measure the displacement of bio-tissue, for example then there is restriction, and may causes comprising in the displacement measurement error because of the operational precision that described deviation is revised.
Therefore, present embodiment, by semi-automatically revise being concerned about the angle in zone 203, thus with displacement of tissue direction designated displacement probing direction as one man.More specifically, as shown in Figure 3, the operator is the layer image that shows on image display 112 of visuognosis on one side, on one side through operating portion 114, respectively at side edge part on the blood vessel 204 be concerned about the two places appointment datum mark that the short leg in zone 203 intersects (below be called cross point 207,208).In addition, also can replace side edge part and specify the cross point of lower lip portion and short leg.In addition, cross point 207,208 also can utilize the brightness settings of layer image.That is, in the picture of image display 112, the wall of blood vessel 204 shows with high brightness.Control operational part 113 utilizes this light characteristic, and high brightness line that the wall of blood vessel 204 is formed and the intersection point of being concerned about zone 203 are set at cross point 207,208.
After specifying cross point 207,208, as shown in Figure 4, the detecting unit 113C of displacement of tissue direction will be judged as the displacement of tissue direction with the orthogonal direction of line segment that is connected 207,208 in cross point.That is, in the present embodiment,, semi-automatically detect and organize direction of displacement by specifying cross point 207,208.
Then, be concerned about that the angle modification unit 113E in zone is rotated correction to being concerned about zone 203 so that connect 207,208 in cross point line segment orthogonal direction and be concerned about that the deviation of the short side direction in zone 203 is 0.That is, the angle modification unit 113E that is concerned about the zone resets the consistent care zone 308 of orthogonal direction of short side direction and the line segment in 207,208 in connection cross point.Then, the setup unit 113B of displacement probing direction as one man revises by making displacement probing direction 206a～206h and the short side direction of being concerned about zone 308, specifies new displacement probing direction 306a～306f thus.Ultrasonic transmission/reception portion 103 and displacement probing direction 306a～306f as one man make ultrasonic beam deflection.Then, displacement operational part 105 is measured the displacement of the bio-tissue on displacement probing direction 306a～306f based on the received signal of enumerating along displacement probing direction 306a～306f.
Fig. 5 is the figure of the example measured of the displacement of expression bio-tissue when consistent with the displacement of tissue direction to the displacement probing direction.Care zone 501 shown in Figure 5 is by the angle modification unit 113E that is concerned about the zone parallelogram that angle modification obtains have been carried out in original care zone.The displacement of tissue direction here is meant along the direction of the inclined lateral side of being concerned about zone 501, promptly is being concerned about the direction shown in the arrow in regional 501.The displacement probing direction is reset to along the direction of the inclined lateral side of being concerned about zone 501 by the setup unit 113B of displacement probing direction.Generally speaking, in the care zone 501 here, the displacement probing direction is consistent with the displacement of tissue direction.
At first, ultrasonic transmission/reception portion 103 is by 102 as one man receiving and dispatching ultrasonic beam with the displacement probing direction through popping one's head in, thereby obtains the seasonal effect in time series received signal.Then, displacement operational part 105 selects the current RF signal frame data (N) 502 that obtain as first data.The RF signal frame data (N) the 502nd here are according to the incline direction of the side of being concerned about zone 501, be the ensemble that the displacement probing direction is enumerated.Displacement operational part 105 is also selected the RF signal frame data (X) 503 that obtain in the past in time.The RF signal frame data (X) 503 here also are according to the incline direction of the side of being concerned about zone 501, are the ensemble that the displacement probing direction is enumerated.And displacement operational part 105 passes through RF signal frame data (N) 502 and RF signal frame data (X) 503 are carried out relevant treatment, thereby the amount of movement of measuring the bio-tissue on the displacement probing direction is a displacement.
According to present embodiment, as shown in Figures 2 and 3, even under the situation that displacement probing direction 206a～206h staggers with respect to displacement of tissue direction 205a～205j, also can reset the displacement probing direction 306a～306f consistent with displacement of tissue direction 205a～205j.Thus, as if the displacement of measuring bio-tissue along displacement probing direction 306a～306f, then can be along the orientation measurement displacement of bio-tissue actual displacement, so improved the precision of displacement measurement.Constitute elastic image based on such measured value, thereby reduced the anthropic factor (art fact) that produces in the elastic image.Its result, the restrictions such as shape of face of the direction of the bio-tissue that do not suffer oppression or compressing bio-tissue can obtain the high-quality elastic image of the character of the deformation of faithful reappearance bio-tissue or hardness etc.
For example, known thyroid position owing to carotid flap make perienchyma produce deformation.Thus, take the elasticity relevant with the thyroid position as the time, measurement can be based on the measured value formation elasticity picture of displacement because of the displacement of the perienchyma of the carotid deformation of flapping.But, when carotid artery exists with respect to probe 102 ultrasonic transmission/reception face tilt etc., can between displacement probing direction and displacement of tissue direction, produce deviation.Since according to present embodiment, consistent by making the displacement probing direction with the displacement of tissue direction, thus can improve the certainty of measurement of the displacement of bio-tissue, so can obtain useful clinical data.
Fig. 6 is the state examples of being concerned about the zone is set in expression to various blood vessels figure.The state that Fig. 6 (A) and Fig. 6 (C) expression blood vessel exist with respect to the ultrasonic transmission/reception face tilt.It is vertical with respect to the length direction of blood vessel to be concerned about under this situation that zone (ROI) is configured to its short side direction.Then, be that the displacement of tissue direction is as one man set the displacement probing direction with the short side direction of being concerned about the zone.That is, the displacement probing direction is consistent with the displacement of tissue direction.In addition, under the situation shown in Fig. 6 (C), because blood vessel is with respect to the blood vessel inclined in opposite directions shown in Fig. 6 (A), thus be concerned about the zone by revising to the rightabout rotation of the situation of Fig. 6 (A), thus make the displacement probing direction consistent with the displacement of tissue direction.Fig. 6 (B) expression blood vessel is with respect to the state of the parallel existence of ultrasonic transmission/reception face.In this case, owing to be concerned about that the short side direction in zone is that the displacement probing direction is consistent with the displacement of tissue direction, do not need to be concerned about the angle modification in zone.
In addition, Fig. 6 (D) expression blood vessel is with respect to the state of the crooked existence of ultrasonic transmission/reception face.In this case, be concerned about that the zone is configured to have the fan-shaped of the arc corresponding with the curvature of the pars convoluta of blood vessel.The setup unit 113B of displacement probing direction reset with the vertical direction of tangent line of arc of being concerned about the zone as the displacement probing direction.When ultrasonic transmission/reception portion 103 changes the ultrasonic beam direction gradually according to the arc of being concerned about the zone, the transmitting-receiving ultrasonic beam.Thus, even under the situation of blood vessel with respect to the crooked existence of ultrasonic transmission/reception face, also the variation of the displacement of tissue direction that can cause according to the bending because of blood vessel makes displacement probing direction unanimity.
This segmental care zone is to be concerned about that by connecting a plurality of micro rectangle the zone generates.For example, shown in the right figure of Fig. 6 (D), by use and Fig. 2, Fig. 3, Fig. 6 (the A)～same method of Fig. 6 (C), thereby make three micro rectangle be concerned about that the tangential direction of the short side direction of region R OI1～ROI3 etc. and blood vessel is consistent, and make length direction with consistent, be concerned about region R OI1～ROI3 and set a plurality of along the blood vessel segmentation micro rectangle with the vertical direction of blood vessel tangent line.Spread all over segmental care regional integration like this and set a plurality of micro rectangle care zone.In addition, this micro rectangle is concerned about that the zone is set at the scope of the curvature shapes that can ignore blood vessel.
Then, be concerned about that with each micro rectangle the length direction of region R OI1, ROI2, ROI3 etc. is that the displacement of tissue direction is as one man set the displacement probing direction.Thus, be concerned about that in each micro rectangle the zone can make the displacement probing direction consistent with the displacement of tissue direction.That is, can spread all over whole fan-shaped care zone makes the displacement probing direction consistent with the displacement of tissue direction.According to the establishing method in such care zone, no matter shape of blood vessel is fan-shaped or how complicated shape can both be tackled.
In addition, in this example,, obtain the elastic image of the bio-tissue when oppressing, but be not to be defined in such mode by flapping of blood vessel 204 with flapping of blood vessel 204 as pressure source.For example, though with the mode of manually pushing the probe 102 that compressing contacts with the body surface of subject 101, the mode of using the vibrator that contacts with the body surface of subject 101 to oppress also can use the present invention.Generally speaking, using the present invention under the situation that produces deviation between displacement probing direction and the displacement of tissue direction gets final product.
(embodiment 2)
Present embodiment with the difference of the embodiment 1 of the deflection of ultrasonic beam own is, when making the displacement probing direction consistent, only make in being concerned about the zone predefined elasticity computing direction be concerned about that promptly the displacement probing direction in regional is consistent with the displacement of tissue direction with the displacement of tissue direction.
Fig. 7 is the figure of action of setup unit 113B that is used to illustrate the displacement probing direction of present embodiment.Mode shown in Figure 7 and mode difference shown in Figure 4 are that the ejaculation direction of ultrasonic beam is vertical with respect to ultrasonic transmission/reception face 201a.
When the elastic image of the bio-tissue of taking subject 101, at first, ultrasonic transmission/reception portion 103 obtains the signal relevant with subject 101 by vertically receive and dispatch ultrasonic beam with respect to ultrasonic transmission/reception face 201a.Here, the setup unit 113B of the displacement probing direction of present embodiment as one man is set in predefined displacement probing direction in the care zone 303 with displacement of tissue direction 205a～205j.Then, the setup unit 113B of displacement probing direction exports to displacement operational part 105: the instruction of the signal of enumerating corresponding to described revised displacement probing direction in the signal of selection ultrasonic transmission/reception portion 103 outputs; With instruction based on the displacement on the displacement probing direction of revised signal measurement bio-tissue.
That is, from the output signal selection of ultrasonic transmission/reception portion 103 signal corresponding and carry out the elasticity computing, then only make the displacement probing direction of being concerned about in the zone 303 consistent with the displacement of tissue direction with displacement of tissue direction 205a～205j.Thus, according to present embodiment, when making the displacement probing direction consistent,, also can make the displacement probing direction of being concerned about in the zone 303 consistent with the displacement of tissue direction even do not make ultrasonic beam deflection with the displacement of tissue direction.Its result except effect similarly to Example 1, can also be simply makes the displacement probing direction consistent with the displacement of tissue direction corresponding to the complicated activity of bio-tissue.
(embodiment 3)
Present embodiment is with embodiment 1 difference of specified tissue direction of displacement semi-automatically, detects automatically and organizes direction of displacement.Thus, be that the center describes with this difference.
Fig. 8 is the sketch map of detecting unit 113C action example of the displacement of tissue direction of presentation graphs 2.The transverse axis of Fig. 8 is represented the subject coordinate axes with the direction of ultrasonic transmission/reception face 201a almost parallel.The longitudinal axis is represented the subject coordinate axes with the direction of ultrasonic transmission/reception face 201a approximate vertical.The transverse axis and longitudinal axis unit separately is a millimeter (mm).
As shown in Figure 8, the detecting unit 113C of displacement of tissue direction to exert pressure to before the bio-tissue and after layer image, carry out related operation based on the signal corresponding with wide region with each pixel.More specifically, detecting unit 113C obtains the signal 601 of bio-tissue before exerting pressure.The position of the signal 601 here is vertical 1[mm], horizontal 1[mm].Then, detecting unit 113C detects the mobile destination of the signal 601 when bio-tissue exerted pressure by relevant treatment, and judges based on testing result and to organize direction of displacement.
For example, when mobile destination that detecting unit 113C detects signal 601 is the position (vertically 8[mm], horizontal 1[mm]) of signal 602, judge that the displacement of tissue direction be vertically (for example 0 spends).In addition, when mobile destination that detecting unit 113C detects signal 601 is the position (vertically 1[mm], horizontal 8[mm]) of signal 603, judge that the displacement of tissue direction be laterally (for example 90 spend).In addition, when mobile destination that detecting unit 113C detects signal 601 is the position (vertically 8[mm], horizontal 8[mm]) of signal 604, judge that the displacement of tissue direction is oblique (for example 45 degree).Detecting unit 113C handles according to the detection that coordinate is carried out the displacement of tissue direction, and detects the detected value of each coordinate value after average as the displacement of tissue direction.This displacement of tissue direction is output to is concerned about the regional angle modification unit 113E or the setup unit 113B of displacement probing direction.In addition, the processing that makes the displacement of detection of biological soma as one man of displacement probing direction and displacement of tissue direction similarly to Example 1.
That is, when taking the elastic image of thyroid etc., exist thyroid being organized in vertically exerted pressure and be organized in situation about laterally being subjected to displacement etc., thereby be difficult to grasp the displacement of tissue direction.About this point,, organize direction of displacement owing to can detect automatically objective and quantitatively, so can further improve the displacement measurement precision of bio-tissue according to present embodiment.
(embodiment 4)
The difference of present embodiment and embodiment 3 is, when direction of displacement is organized in detection automatically, utilizes the blood flow direction of blood vessel.Thus, be that the center describes with the difference.
The diagnostic ultrasound equipment of present embodiment is provided with Doppler as shown in Figure 1 as formation portion 900.Doppler carries out computing based on the seasonal effect in time series received signal that is taken into from ultrasonic transmission/reception portion 103 to Doppler shift as formation portion 900, constitutes Doppler's picture (for example colorful blood picture) by this Doppler shift.Then, the setup unit 113B of the displacement probing direction of present embodiment determines the displacement probing direction consistent with the displacement of tissue direction based on be made of portion's 900 decidable blood flow directions Doppler's picture.
Fig. 9 is the figure of action of setup unit 113B that is used to illustrate the displacement probing direction of present embodiment.At first, Fig. 9 A looks like to be overlapped in the figure that the blood vessel 204 of Fig. 3 shows with colorful blood.The colorful blood picture here is output to image display 112 as formation portion 900 through the synthetic portion 111 of image from Doppler.
Fig. 9 B is the form of displacement probing direction is as one man set in expression based on blood flow direction and displacement of tissue direction a sketch map.The detecting unit 113C of displacement of tissue direction detects blood flow direction based on colorful blood picture shown in Fig. 9 A, will be the displacement of tissue direction with the orthogonal direction determining of this blood flow direction.The setup unit 113B of displacement probing direction as one man determines the displacement probing direction with the displacement of tissue direction of being judged by detecting unit 113C.In addition, the setting of being concerned about zone 303 is handled or the rotation correcting process, make the processing etc. of ultrasonic beam direction deflection identical with embodiment 1 according to the displacement probing direction.In addition, as described in Example 2, also can adopt to make the displacement probing direction processing consistent of being concerned about zone 303 with the displacement of tissue direction.
According to present embodiment, owing to can organize direction of displacement based on judging automatically as detected blood flow direction from doppler flow inaging, institute is so that displacement of tissue direction and displacement probing direction uniform operation become simple.For example, even when blood vessel is present in the subject 101 with crooked complicated state, also can be based on the definite simply displacement probing direction of the doppler flow inaging picture relevant with this blood vessel.
(embodiment 5)
Present embodiment is with the difference of embodiment 1 that makes the ultrasonic beam deflections by 102 transmitting-receivings of popping one's head in, when making the displacement probing direction consistent with the displacement of tissue direction, with pop one's head in 102 gradient of manual adjustment.Thus, be that the center describes with the difference.
If change the gradient of probe 102, the angle of inclination of 102 the ultrasonic transmission/reception face 201a of then popping one's head in changes, and therefore can adjust the direction by the ultrasonic beam of ultrasonic transmission/reception face 201a transmitting-receiving.That is,,, thereby can make the displacement probing direction consistent with the displacement of tissue direction by the gradient of adjustment probe 102 when under the situation of ultrasonic beam direction setting displacement probing direction.
But,, then make displacement probing direction and displacement of tissue direction uniform operation become numerous and diverse if by virtue of experience or the gradient of intuition adjustment probe 102.Here, the generation unit 113F of the guidance information of Fig. 2 generates the incline direction of the probe 102 of expression displacement probing direction when consistent with the displacement of tissue direction or the guidance information at angle of inclination, and it is shown in image display 112.
Figure 10 is the expression example of the guidance information at the incline direction of expression probe 102 and angle of inclination.In addition, dispose the position of real-time detection probe 102 or the position sensor of gradient.The generation unit 113F of guidance information is for example shown in Figure 10, generates and demonstration: the schematic images 920 of the probe 102 that contacts with the body surface of subject 101; The arrow plot of the displacement probing direction that the ultrasonic beam direction of expression and probe 102 is as one man set is as 921; The arrow plot of the displacement of tissue direction of the bio-tissue of expression subject 101 is as 922; The navigational figure 923 of the incline direction of the probe 102 when expression displacement probing direction is consistent with the displacement of tissue direction.The angle information 924 that also can show in addition, the correction angle θ that expression is corresponding with the deviation between displacement probing direction and the displacement of tissue direction.The correction angle θ here also is the guidance information at the angle of inclination of expression probe 102.
According to present embodiment, the guidance information of navigational figure 923 or angle information 924 etc. becomes the objective and quantitative index that the operation consistent with the displacement of tissue direction of displacement probing direction is helped out to the inclination angle of adjusting probe 102.Thus, the operator be owing to can grasp the target incline direction of probe 102 by vision, so can be reliably and implement to make displacement probing direction and displacement of tissue direction uniform operation simply.Its result has improved the certainty of measurement of the displacement of bio-tissue, and has improved the convenience of operative installations.
In addition, as shown in figure 11, the generation unit 113F of guidance information is being concerned about demonstration side by side on the zone 925: be illustrated in the angle θ that forms between displacement probing direction and the vertical direction
1Angle information 926; And the angle θ that between displacement probing direction and displacement of tissue direction, forms
2Angle information 927 etc.Thus, the operator can be relatively and is visually grasped displacement probing direction and displacement of tissue direction on the care zone 925 of subject 101.
More than, according to present embodiment, the restrictions such as shape of face of the direction of the bio-tissue that do not suffer oppression or compressing bio-tissue can obtain the high-quality elastic image of the character of the deformation of faithful reappearance bio-tissue or hardness etc.
In addition, shown in Fig. 1 or Fig. 2 etc., be the required control function of ultrasonographic that unit has illustrated present embodiment with the piece, be integrated into the ultrasonographic program but also each can be controlled function, carry out this ultrasonographic program by the computer of control usefulness.For example, the ultrasonographic program makes control computer carry out following steps: the direction that is subjected to displacement with the bio-tissue of subject 101 is as one man set the setting step of the probing direction of displacement; To and subject 101 between the hyperacoustic probe of transmitting-receiving 102 supply with the step of sending the driving signal that ripple uses; To the step of handling from the received signal of 102 outputs of popping one's head in; The step of displacement on the described probing direction being measured by the signal after receive handling; Constitute the step of elastic image based on the measured value of this displacement; With the step that shows this elastic image.
As mentioned above, the diagnostic ultrasound equipment of having used one embodiment of the present invention is illustrated, but has adopted diagnostic ultrasound equipment of the present invention under the situation that does not break away from its spirit or principal character, also can implement by other variety of ways.Therefore, all points of described embodiment all are illustration, can not be interpreted as limiting scope of the present invention.That is, scope of the present invention comprises distortion or the change that belongs to equal scope.
Claims (13)
1. diagnostic ultrasound equipment comprises: receive and dispatch ultrasound wave between the ultrasound probe, itself and subject; Transmitting element, it supplies with the driving signal that send ripple to use to this ultrasound probe; Receiving element, it is to handling from the received signal of described ultrasound probe output; The elasticity picture constitutes the unit, and its displacement based on the bio-tissue of measuring according to the output signal of this receiving element constitutes elastic image; And display unit, it shows described elastic image,
This diagnostic ultrasound equipment has: the detecting unit of displacement of tissue direction, and it detects the direction that described bio-tissue is subjected to displacement; With displacement probing direction setup unit, when it sets the probing direction of displacement of described bio-tissue on the ultrasonic beam direction of described ultrasound probe, export the instruction that makes described ultrasonic beam and the deflection as one man of detected described displacement of tissue direction to described transmitting element or described receiving element
Described elasticity picture constitutes the displacement that the ultrasonic beam direction of described bio-tissue after deflection measured in the unit, constitutes described elastic image.
2. diagnostic ultrasound equipment according to claim 1 is characterized in that,
Comprise: be concerned about the setup unit in zone, it is according to the bio-tissue of described subject, the care zone that the probing direction of setting described displacement has been determined in advance; With the angle modification unit of being concerned about the zone, it is rotated correction to described care zone, makes described probing direction consistent with described displacement of tissue direction,
Described displacement probing direction setup unit is exported to described transmitting element or described receiving element: make the regional described probing direction of the revised care of described ultrasonic beam and described rotation as one man carry out the instruction of deflection.
3. diagnostic ultrasound equipment according to claim 2 is characterized in that,
Described bio-tissue setting rectangle or the segmental care zone of being concerned about the setup unit in zone according to described subject.
4. diagnostic ultrasound equipment according to claim 1 is characterized in that,
Described displacement probing direction setup unit constitutes unit output to described elasticity picture: the instruction of the signal that selection is enumerated corresponding to described probing direction from the signal of described receiving element output; With select based on this after the instruction of displacement of the described probing direction of calculated signals.
5. diagnostic ultrasound equipment according to claim 1 is characterized in that,
Comprise: be concerned about the setup unit in zone, the care zone that the probing direction that its bio-tissue according to described subject is set described displacement has been determined in advance; With the angle modification unit of being concerned about the zone, it is rotated correction to described care zone, makes described probing direction consistent with described displacement of tissue direction,
Described displacement probing direction setup unit constitutes unit output to described elasticity picture: the instruction of the signal that selection is enumerated accordingly with the described probing direction in the revised care of described rotation zone from the signal of described receiving element output; With select based on this after the instruction of displacement of the described probing direction of calculated signals.
6. diagnostic ultrasound equipment according to claim 5 is characterized in that,
Described bio-tissue setting rectangle or the segmental care zone of being concerned about the setup unit in zone according to described subject.
7. diagnostic ultrasound equipment according to claim 1 is characterized in that,
The care Region Segmentation that described displacement probing direction setup unit will be set at described bio-tissue is that a plurality of micro rectangle are concerned about the zone, described displacement of tissue direction to each described micro rectangle care zone is determined, and is as one man set described probing direction with this displacement of tissue direction.
8. diagnostic ultrasound equipment according to claim 1 is characterized in that,
The detecting unit of described displacement of tissue direction, the orthogonal direction of the line segment on the layer image that will be relevant with described bio-tissue between appointed two datum marks is judged to be described displacement of tissue direction.
9. diagnostic ultrasound equipment according to claim 1 is characterized in that,
The detecting unit of described displacement of tissue direction, carry out the relevant treatment of the layer image in the compressing of layer image before the compressing of described bio-tissue and described bio-tissue, try to achieve the moving direction at the position on the described layer image, this moving direction is judged to be described displacement of tissue direction.
10. diagnostic ultrasound equipment according to claim 1 is characterized in that,
The detecting unit of described displacement of tissue direction is tried to achieve blood flow direction by Doppler's calculation process according to the output signal of described receiving element, will be described displacement of tissue direction with the orthogonal direction determining of described blood flow direction.
11. diagnostic ultrasound equipment according to claim 1 is characterized in that,
Described display unit shows guidance information, this guidance information is illustrated in when setting described probing direction on the ultrasonic beam direction of described ultrasound probe, the incline direction or the angle of inclination of the described ultrasound probe when described ultrasonic beam direction is consistent with described displacement of tissue direction.
12. diagnostic ultrasound equipment according to claim 1 is characterized in that,
Described display unit show the described displacement of tissue direction of expression arrow plot picture, the described displacement of expression probing direction the arrow plot picture and represent in the arrow plot picture of ultrasonic beam direction of described ultrasound probe at least one.
13. diagnostic ultrasound equipment according to claim 1 is characterized in that,
Described display unit shows the angle between the probing direction that is formed on described displacement of tissue direction and described displacement.
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| PCT/JP2005/023886 WO2006073088A1 (en) | 2005-01-04 | 2005-12-27 | Ultrasonographic device, ultrasonographic program, and ultrasonographic method |
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- 2005-12-27 JP JP2006550791A patent/JPWO2006073088A1/en active Pending
- 2005-12-27 EP EP05822712A patent/EP1834588B1/en not_active Not-in-force
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| EP1123687A2 (en) * | 2000-02-10 | 2001-08-16 | Aloka Co., Ltd. | Ultrasonic diagnostic apparatus |
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|---|---|
| US7766836B2 (en) | 2010-08-03 |
| EP1834588A1 (en) | 2007-09-19 |
| JP2013034883A (en) | 2013-02-21 |
| JP5496302B2 (en) | 2014-05-21 |
| CN101094611A (en) | 2007-12-26 |
| EP1834588A4 (en) | 2009-03-11 |
| EP1834588B1 (en) | 2011-07-13 |
| WO2006073088A1 (en) | 2006-07-13 |
| JPWO2006073088A1 (en) | 2008-06-12 |
| US20080081993A1 (en) | 2008-04-03 |
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